R W Loss

East Carolina University, Department of Physical Therapy, 600 Moye Boulevard, Greenville, NC 27834, United States; Proaxis Physical Therapy, 304 W Weaver Street, Suite 103, Carrboro, NC 27510, United States.

29 publications 1980 – 2015

What does R W Loss research?

R W Loss studies the processes that occur in vascular smooth muscle cells, which are the cells that make up the walls of blood vessels. His work centers on how these cells respond to specific signals from their environment, especially regarding a molecule called interleukin-6 (IL-6). IL-6 is an immune signaling molecule that can promote inflammation and contribute to damage in blood vessels. By uncovering how this signaling occurs, particularly through certain proteins that are typically involved in immune responses, his research aims to find new strategies to treat cardiovascular diseases and manage inflammation in the body.

Key findings

  • Activation of Galpha(q)-coupled receptors in vascular smooth muscle cells triggers the rapid production of interleukin-6.
  • This production is mediated by a protein called NFAT, which is also crucial in immune cell function.
  • The drug cyclosporin A can partially block IL-6 production, indicating potential therapeutic pathways for treating inflammation-related vascular diseases.

Frequently asked questions

Does Dr. R W Loss study heart diseases?
Yes, Dr. R W Loss researches how immune signaling in blood vessel cells affects cardiovascular health.
What role does interleukin-6 play in your research?
Interleukin-6 is an important molecule that promotes inflammation and can cause damage to blood vessels, which is central to Dr. Loss's studies.
Has Dr. R W Loss researched any treatments for cardiovascular conditions?
His research suggests that targeting the signaling processes in blood vessel cells could lead to new treatments for cardiovascular diseases.
Can Dr. R W Loss's findings help with inflammation?
Yes, understanding how interleukin-6 is produced can lead to better strategies for managing inflammation-related complications.

Publications in plain English

Robotic-assisted laparoscopic donor nephrectomy: decreasing length of stay.

2015

Ochsner journal

Cohen AJ, Williams DS, Bohorquez H, Bruce DS, Carmody IC +2 more

Plain English
This research examined the effectiveness of robotic-assisted surgeries for kidney donation compared to traditional hand-assisted surgeries. The study found that 60% of patients who had robotic surgery left the hospital the day after the operation, compared to 45% of those who had the hand-assisted method. This faster recovery not only reduces costs for hospitals but also enables them to treat more patients. Who this helps: This benefits kidney donation patients and hospitals.

PubMed

Role of Special Coagulation Studies for Preoperative Screening of Thrombotic Complications in Simultaneous Pancreas-Kidney Transplantation.

2015

Ochsner journal

Moiz A, Javed T, Bohorquez H, Bruce DS, Carmody IC +5 more

Plain English
This study looked at the usefulness of special tests that check blood clotting in patients getting a pancreas and kidney transplant at the same time. Out of 83 transplant patients, 18 developed blood clots in the pancreas, but the tests only identified 4 out of 23 patients who showed signs of clotting issues as actually having problems. Overall, the screening tests weren't effective in preventing blood clots, showing low accuracy and not impacting patient or organ survival after a year. Who this helps: This information is important for doctors evaluating transplant patients to help them decide if these tests are necessary.

PubMed

Sex differences in running mechanics and patellofemoral joint kinetics following an exhaustive run.

2015

Journal of biomechanics

Willson JD, Loss JR, Willy RW, Meardon SA

Plain English
The study looked at how running mechanics change after a long run and whether these changes are different for males and females, particularly in relation to patellofemoral joint pain (PFP), which is more common in women. Researchers tested 35 runners (18 females and 17 males) and found that after running until they were exhausted, both groups experienced similar changes in their running mechanics. Specifically, they noticed increases in forces and motions related to the knees and hips that could lead to PFP, but these changes were not unique to females, meaning that exhaustion does not seem to explain the higher rates of PFP in women. Who this helps: This research helps both patients with running-related injuries and healthcare providers who treat them.

PubMed

Phaeohyphomycosis fungal infections in solid organ transplant recipients: clinical presentation, pathology, and treatment.

2014

Transplant infectious disease : an official journal of the Transplantation Society

Schieffelin JS, Garcia-Diaz JB, Loss GE, Beckman EN, Keller RA +3 more

Plain English
This study looked at infections caused by dark-colored fungi in patients who received solid organ transplants, analyzing 27 cases from 1988 to 2009. Researchers found that these fungal infections mainly affected the skin and soft tissues, with some cases linked to serious issues like brain and lung abscesses. Treatment often involved surgery and antifungal medications, with deaths only occurring in the more severe cases; this highlights the growing risk of fungal infections in transplant patients as the number of transplants rises. Who this helps: This information is valuable for doctors treating organ transplant patients, as it can guide them in recognizing and managing these serious infections.

PubMed

Tumor Necrosis Factor-α: Life and Death of Hepatocytes During Liver Ischemia/Reperfusion Injury.

2013

Ochsner journal

Shuh M, Bohorquez H, Loss GE, Cohen AJ

Plain English
This study looked at how a substance called TNF-α affects liver cells during situations where the liver doesn’t get enough blood flow (ischemia) and then suddenly receives it again (reperfusion). The researchers found that TNF-α can lead liver cells to either grow more or die, depending on how it binds to its receptor. They also discovered that lowering TNF-α can help reduce injury in the liver without completely stopping its important functions. Who this helps: This research benefits patients undergoing liver transplantation and their doctors.

PubMed

Liver transplantation at the ochsner clinic: quality and outcomes improvement.

2013

Ochsner journal

Therapondos G, Bohorquez H, Bruce DS, Bzowej NH, Carmody IC +5 more

Plain English
This study looked at how the liver transplant program at Ochsner Clinic improved its patient care and outcomes after facing lower-than-expected survival rates. They made several changes, including standardizing treatments and involving staff in decision-making, which led to becoming the biggest liver transplant program in the U.S. by 2012 and earning the top award for quality in 2013. This improvement means that more patients received better care and had higher chances of survival after surgery. Who this helps: Patients needing liver transplants.

PubMed

Reflections on a post-katrina transplant program.

2010

Ochsner journal

Loss GE

PubMed

Improving Donor Livers by Inhibiting TNF-α Production.

2010

Ochsner journal

Zetzmann CP, Swamy OR, Loss GE, Bohorquez H, Cohen AJ

Plain English
This study focused on a problem that affects liver transplants called ischemia/reperfusion (I/R) injury, which can harm the liver during the transplant process. The researchers found that using a substance called TIMP-3 can help protect the liver from this damage, potentially leading to better transplant results. Improving the health of donor livers means fewer complications for patients receiving transplants. Who this helps: This helps patients needing liver transplants.

PubMed

Safety of a novel gel formulation of clindamycin phosphate 1.2%-tretinoin 0.025%: results from a 52-week open-label study.

2008

Cutis

Kircik LH, Peredo MI, Bucko AD, Loss RW, Fowler JF +2 more

Plain English
This study explored the long-term safety of a new gel treatment for acne that combines two medications: clindamycin phosphate and tretinoin. Over 52 weeks, 92% of participants didn't experience any itching, burning, or stinging, and most side effects were mild, with only 7% reporting acne flare-ups. These findings show that this new gel is a safe option for people with mild to moderate acne, making it easier for patients to stick with their treatment. Who this helps: This benefits patients dealing with acne, especially teenagers and young adults.

PubMed

Reduction of immunosuppression for transplant-associated skin cancer: expert consensus survey.

2006

The British journal of dermatology

Otley CC, Berg D, Ulrich C, Stasko T, Murphy GM +6 more

Plain English
Researchers looked at how to safely reduce medications that suppress the immune system in patients who have received organ transplants and are facing severe skin cancers. They found that a mild reduction in these medications is recommended if patients have multiple low-risk skin cancers or individual high-risk ones, while a moderate reduction is suggested for more than 25 skin cancers a year or certain cancers with a 10% chance of causing death in three years. This matters because it offers a clear plan for doctors to help manage skin cancer risks in transplant patients without compromising their overall health. Who this helps: This helps transplant patients at risk of developing skin cancer and their doctors.

PubMed

Miller fisher variant of guillain-barre syndrome requiring a cardiac pacemaker in a patient on tacrolimus after liver transplantation.

2005

The Annals of pharmacotherapy

Kaushik P, Cohen AJ, Zuckerman SJ, Vatsavai SR, Pepper JS +4 more

Plain English
This study reports the case of a 46-year-old man who developed a severe condition called Miller Fisher syndrome (a form of Guillain-Barre syndrome) after taking the medication tacrolimus following a liver transplant. Due to this syndrome, he experienced serious heart problems that required a pacemaker to regulate his heart rhythm. His condition improved significantly after stopping tacrolimus and receiving a specific treatment called intravenous immunoglobulin. Who this helps: This information is important for doctors and patient groups taking tacrolimus, as it highlights potential severe risks associated with the medication.

PubMed

Early postoperative hepatic sonography as a predictor of vascular and biliary complications in adult orthotopic liver transplant patients.

2005

AJR. American journal of roentgenology

Uzochukwu LN, Bluth EI, Smetherman DH, Troxclair LA, Loss GE +2 more

Plain English
This study looked at how well early ultrasound measurements could predict problems in the blood vessels and bile ducts after liver transplants in adults. Out of 110 transplant patients, 7 had problems with their blood vessels, while 19 experienced issues with bile ducts. The researchers found that patients with lower ultrasound readings (0.6 or below) right after surgery were more likely to have blood vessel complications, making it important to keep a close eye on these patients. Who this helps: This helps doctors monitor liver transplant patients for serious complications.

PubMed

Steroid-free liver transplantation using rabbit antithymocyte globulin and early tacrolimus monotherapy.

2003

Transplantation

Eason JD, Nair S, Cohen AJ, Blazek JL, Loss GE

Plain English
This study looked at how well patients did after liver transplants when treated with a steroid-free approach using rabbit antithymocyte globulin (RATG) and a fast track to another medication called tacrolimus. Out of 119 patients, the one-year survival rates were 85% for both groups, but those using RATG had a much lower need for additional steroids to treat rejection (only 1.6% needed them compared to 50% for those on steroids), and they also had fewer infections and diabetes issues. This is important because it indicates that using RATG leads to better health outcomes and fewer complications after a liver transplant. Who this helps: Patients undergoing liver transplantation.

PubMed

Does lamivudine prophylaxis eradicate persistent HBV DNA from allografts derived from anti-HBc-positive donors?

2003

Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society

Loss GE, Mason AL, Nair S, Blazek J, Farr G +3 more

Plain English
This study looked at whether a treatment plan could eliminate hepatitis B virus (HBV) from liver transplants taken from donors who tested positive for certain hepatitis B markers. Out of 14 patients who received transplants, 64% of the livers showed some level of HBV DNA, but after following the treatment—which included a single dose of hepatitis B immunoglobulin and ongoing lamivudine therapy—88% of compliant patients had undetectable virus levels in their transplanted livers. This matters because it shows that while the treatment can greatly reduce viral presence, it does not fully eradicate the virus, meaning ongoing treatment is necessary to prevent hepatitis B infection. Who this helps: This is beneficial for liver transplant patients and their doctors.

PubMed

Innovative medical management with resection for successful treatment of pulmonary mucormycosis despite diagnostic delay.

2002

The Journal of the Louisiana State Medical Society : official organ of the Louisiana State Medical Society

MacKenzie KM, Baumgarten KL, Helm BM, McFadden PM, Deduska NJ +2 more

Plain English
This study examined a patient with a serious fungal infection called pulmonary mucormycosis that was discovered accidentally during a CT scan. The treatment plan involved stopping immune-suppressing medications, giving antifungal drugs, stimulating the immune system, and surgically removing the affected lung lobe. Despite the challenges, including the need for kidney surgery due to stopping immunosuppression, the treatment was effective for this patient. Who this helps: This benefits kidney transplant patients who develop serious infections.

PubMed

Liver transplantation for hepatocellular carcinoma: the ochsner experience.

2002

Ochsner journal

Loss GE, Nair S, Blazek JL, Farr GH, Eason JD

Plain English
This study looked at 36 patients with early-stage liver cancer (hepatocellular carcinoma) who received liver transplants at the Ochsner Clinic Foundation from 1998 to 2002. The results showed that 80% of patients were alive one year after the transplant, and 61% were alive three years later, with no evidence of cancer returning in any of the patients. This is important because it shows that liver transplantation is a successful option for treating patients whose cancer can't be surgically removed. Who this helps: Patients with early-stage liver cancer.

PubMed

Retroviral vectors applied to gene regulation studies.

2002

Methods in enzymology

Murphy TJ, Pavlath GK, Wang X, Boss V, Abbott KL +5 more

PubMed

Racemic salbutamol administration to guinea-pigs selectively augments airway smooth muscle responsiveness to cholinoceptor agonists.

2001

Journal of autonomic pharmacology

Loss JR, Hock RS, Farmer SG, Orzechowski RF

Plain English
In this study, researchers looked at how giving guinea pigs a low dose of salbutamol for 10 days impacted their airway muscle's response to certain chemicals that cause constriction. They found that this treatment increased the muscle's strength of contraction to cholinergic signals by about 30% compared to untreated animals. This matters because it shows that long-term use of salbutamol can temporarily make airways more sensitive to certain triggers, which might affect how asthma treatments work. Who this helps: This helps patients with asthma by providing insights into how medications might influence airway sensitivity.

PubMed

Measurement of albuterol in guinea pig serum by high performance liquid chromatography with fluorescence detection.

2000

Biomedical chromatography : BMC

Loss JR, Orzechowski RF, Hock RS

Plain English
This study looked at how well a specific method could measure the asthma medication albuterol in the blood of guinea pigs. Researchers found that their method was precise and could detect as little as 1 nanogram of albuterol per milliliter of blood. This is important because accurate measurements of medication levels can help ensure proper dosing and monitoring of treatment effects. Who this helps: This helps doctors and researchers working with asthma medications in animals or related studies.

PubMed

Evidence that Galpha(q)-coupled receptor-induced interleukin-6 mRNA in vascular smooth muscle cells involves the nuclear factor of activated T cells.

2000

Molecular pharmacology

Abbott KL, Loss JR, Robida AM, Murphy TJ

Plain English
Researchers discovered that when certain receptors on blood vessel muscle cells are activated, they trigger the production of an immune signaling molecule called interleukin-6 (IL-6) through a specific protein called NFAT that normally works in immune cells. The activation happens quickly and can be partially blocked by a drug called cyclosporin A, which is used to suppress the immune system. This matters because IL-6 is involved in inflammation and blood vessel damage, so understanding how it's produced in blood vessel cells could lead to new ways to treat cardiovascular diseases and reduce inflammation-related complications.

PubMed

Reversal of delayed hyperacute renal allograft rejection with a tacrolimus-based therapeutic regimen.

1998

Transplantation proceedings

Loss GE, Grewal HP, Siegel CT, Peace D, Mead J +5 more

PubMed

Cyclosporine versus cyclosporine microemulsion in pediatric liver transplant recipients.

1998

Transplantation proceedings

Loss GE, Brady L, Grewal HP, Siegel CT, Mead J +6 more

PubMed

The requirement for DM in class II-restricted antigen presentation and SDS-stable dimer formation is allele and species dependent.

1995

The Journal of experimental medicine

Stebbins CC, Loss GE, Elias CG, Chervonsky A, Sant AJ

Plain English
This study explored how a protein called DM affects the way certain immune molecules present antigens, which are pieces of pathogens that help the immune system recognize and fight infections. Researchers found that the role of DM varies depending on the specific type (allele) and species of the immune molecule being studied; for instance, the version I-Ak could form stable complexes better than I-Ad in defective cell lines. The findings show that the ability to form stable immune complexes is not always linked to how well these molecules present antigens, which could change how we understand immune responses. Who this helps: This helps researchers and doctors working on immunotherapy and vaccine development.

PubMed

Comparative study of calcipotriene (MC 903) ointment and fluocinonide ointment in the treatment of psoriasis.

1994

Journal of the American Academy of Dermatology

Bruce S, Epinette WW, Funicella T, Ison A, Jones EL +3 more

Plain English
Researchers compared two ointments for treating plaque psoriasis: calcipotriene and fluocinonide. They found that patients using calcipotriene showed greater improvements in skin symptoms, such as scaling and redness, as early as two weeks into the treatment, continuing through six weeks. Specifically, the scores for skin condition in those using calcipotriene were significantly lower than those using fluocinonide. Who this helps: This research helps patients with plaque psoriasis looking for more effective treatment options.

PubMed

Invariant chain retains MHC class II molecules in the endocytic pathway.

1993

Journal of immunology (Baltimore, Md. : 1950)

Loss GE, Sant AJ

Plain English
This study looked at how a protein called the invariant chain (Ii) interacts with immune molecules known as MHC class II. The researchers found that when Ii is attached to MHC class II inside cells, it prevents these molecules from reaching the surface, where they are needed to help the immune system recognize pathogens. They discovered that blocking the release of Ii leads to a significant decrease in the amount of MHC class II found on the surface of cells, but removing the block restores it quickly. Who this helps: This research benefits doctors and medical professionals working to understand immune responses and develop treatments for autoimmune diseases.

PubMed

Major histocompatibility complex class II-restricted presentation of an internally synthesized antigen displays cell-type variability and segregates from the exogenous class II and endogenous class I presentation pathways.

1993

The Journal of experimental medicine

Loss GE, Elias CG, Fields PE, Ribaudo RK, McKisic M +1 more

Plain English
This study investigated how certain internal proteins are displayed by MHC class II molecules on different types of cells. The researchers found that the presentation of a specific protein (H-2Ld) doesn't depend on its presence on the cell surface and does not require the usual processes that help with class II molecule activity, indicating a distinct pathway for this internal protein. This research is significant because understanding how these proteins are presented can improve our knowledge of immune responses and potentially lead to better treatments for diseases. Who this helps: This helps patients by informing the development of new immunotherapies.

PubMed

Aging: effects on minimum alveolar concentration (MAC) for halothane in Fischer-344 rats.

1989

Anesthesia and analgesia

Loss GE, Seifen E, Kennedy RH, Seifen AB

Plain English
This study looked at how aging affects the amount of the anesthetic halothane needed to prevent movement in Fischer-344 rats. Researchers found that older rats (around 25 months old) needed about 17% less halothane compared to younger rats (around 5 months old). This matters because it shows that as organisms age, their response to certain anesthetics changes, which could inform safer anesthesia practices in older patients. Who this helps: This helps doctors understand how to adjust anesthetic doses for older patients.

PubMed

Comparison of cardiac effects of enflurane, isoflurane, and halothane in the dog heart-lung preparation.

1987

Journal of cardiothoracic anesthesia

Seifen E, Seifen AB, Kennedy RH, Bushman GA, Loss GE +1 more

Plain English
This study looked at how three anesthetics—enflurane, isoflurane, and halothane—affect the hearts of dogs. Researchers found that while all three drugs lower heart rate and heart function as their doses increase, halothane and isoflurane have consistently similar effects, whereas enflurane starts showing stronger negative effects at higher doses (1.0 MAC and above). These findings matter because understanding how these anesthetics impact heart function can help doctors choose the safest option for their patients during surgery. Who this helps: This helps doctors who administer anesthesia to patients.

PubMed

Campylobacter colitis presentin as inflammatory bowel disease with segmental colonic ulcerations.

1980

Gastroenterology

Loss RW, Mangla JC, Pereira M

Plain English
This study looked at a case of diarrhea caused by a specific type of bacteria called Campylobacter fetus, which can mimic other bowel diseases, particularly inflammatory bowel diseases like ulcerative colitis. The patient showed signs of severe inflammation and ulcerations in the colon, but after treatment with erythromycin, their condition improved significantly, and follow-up tests showed no signs of the infection. This matters because understanding how Campylobacter can present like other serious conditions can help doctors provide the right treatment and avoid unnecessary procedures. Who this helps: Patients with gastrointestinal issues and doctors who treat them.

PubMed

Publication data sourced from PubMed . Plain-English summaries generated by AI. Not medical advice.