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1.
Cureus ; 16(3): e56163, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38618329

RESUMO

Background A significant cause of knee pain is patellofemoral pain syndrome (PFPS). Young adults are the most common population to be impacted, and this condition appears to affect both sexes. Patellofemoral joint (PFJ) compression, which is felt around the patella during any physical or athletic activity, usually causes patients to experience pain in the anterior part of the knee. Physiotherapy is essential for patients suffering from this illness, as it can improve their everyday activities and ability to return to their sport. Methodology The study's main goal was to evaluate the effectiveness of somatosensory training and isometric exercises for pain, proprioception, and balance in runners with PFPS. Before- and after-test approaches were used in the investigation. Eighty-five people made up the study, with the inclusion and exclusion criteria used to determine eligibility. Isometric exercises and somatosensory training were given to every individual; the group was not randomly assigned. The patient's diagnosis was made using the patellar grind test. Participants received 30-45 minutes of isometric exercises and 15 minutes of somatosensory training every four days. The visual analog scale, joint position sense test, and Y-balance test were taken as outcome measures to measure PFPS before and after the intervention. Results The result revealed significant (p=0.0001) improvement in PFPS following the intervention. Both the isometric exercises and somatosensory training were found to be significant in reducing the intensity of the pain and improving the proprioception and balance of the individuals. Conclusion Both treatment approaches were beneficial in lowering pain in the joints, developing balance, and helping the patient perceive the position of the joint. Individuals can use both therapy methods to improve their running abilities, and they should become ingrained in daily practice.

2.
Cureus ; 15(11): e48101, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38046732

RESUMO

Introduction Proprioception is one's capacity to perceive bodily position, alignment, and movement. Several connective tissues, such as skin, ligaments, joint capsules, and muscles in the body, contain proprioceptive sensory receptors. Joint elasticity results from hormonal variations, notably the peak relaxin hormone during pregnancy, which also affects proprioceptive receptors. The musculoskeletal system may be affected by hormones and anatomical changes brought on by pregnancy, including joint laxity and modifications to posture and gait. The capacity to perceive the joint position and movement, or proprioception, may be impacted. To comprehend the impacts of pregnancy on joint function and postpartum women's rehabilitation options, this study compares knee joint proprioception in women who gave birth 12 weeks ago to nulliparous women. The study aims to assess and compare the degree of alteration in knee joint proprioception in 12-week postpartum females. Methodology A total of 160 participants were assessed during the entire study. Women from 18 to 35 years of age were included in the study. Women with any present knee joint injury, multiparty, or relevant surgical history were excluded. The procedure was performed under the author's surveillance at the Department of Community Health Physiotherapy. The knee joint reposition test was used to assess the knee joint proprioceptive error among two groups (80 each), including nulliparous women and the other 12-week postpartum women. An image tool provided by the University of Texas Health Science Centre at San Antonio (UTHSCSA) was created and offers the tool as computer software or a digital application for handling medical pictures and associated data, software 3.0 was used to determine the angular variation between angles in the targeted and achieved positions during the test. Result A significant proprioceptive error was observed among 12-week postpartum women compared to the nulliparous group of women. The mean error of knee joint repositions among 12-week postpartum women was 0.80±6.08 (P=0.0001), and among nulliparous women was 0.09±0.72 (P=0.0001). Conclusion Concluding insight that pregnancy affects postpartum women's risk of fall injuries and joint function due to altered proprioception. Compared to nulliparous women, proprioceptive error for the dominant knee joint was significant among 12-week postpartum females. The hormonal changes during pregnancy affect the proprioceptive receptors, especially the relaxin hormone surge, which results in joint laxity and may impair joint position sensing, increasing the risk of falls. To better acknowledge the effects of pregnancy on joint function and postpartum women's rehabilitation options, this study compares knee joint proprioception in postpartum and nulliparous women. It proves right about altered proprioception post-childbirth. The results of this study might aid medical practitioners in creating successful rehabilitation plans and treatments to stop postpartum women from falling.

3.
Cureus ; 15(10): e46553, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37933353

RESUMO

Dysmenorrhea is a menstrual disorder characterized by painful uterine cramps that occur during menstruation. There are two types of dysmenorrhea, primary and secondary. It affects 45-95% of all menstruating women worldwide. The prevalence in India is approximately 75%. Primary dysmenorrhea diagnosis is based on the patient's medical history and physical examination. If the history of start and duration of lower abdominal discomfort suggests secondary dysmenorrhoea or if the dysmenorrhoea does not respond to medical treatment, a pelvic examination is necessary to evaluate dysmenorrhoea. Because of the increasingly large number of women who are impacted by primary dysmenorrhea, it should be a public health concern that authorities must address. Abdominal stretching is a very simple, efficient, and risk-free workout. Some of the benefits of stretching exercises for dysmenorrhea include increased elasticity and strength of the spine and pelvic muscles and reduction in pain. The knee-to-chest exercise in combination with hydrocollator packs has a significant effect in improving the pain and the monthly irregularities in primary menstrual pain. Massage of connective tissue is a form of cutaneous stimulation that tries to stimulate the connective tissue's mechanical receptors. Connective tissue massage studies for treating a range of dysfunctions usually indicate that patients treated with this modality get pain alleviation and even complete remission.

4.
Cureus ; 15(8): e43822, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37736435

RESUMO

Premenstrual syndrome (PMS) is a menstrual disorder characterized by physical, behavioral, and emotional symptoms typically occurring during the luteal phase. These symptoms are usually mild and somatic and often subside during or just before the start of menstruation. Medical professionals employ pharmacological and non-pharmacological treatments as the primary approach to managing PMS. One effective non-pharmacological method is Laura Mitchell's physiological relaxation treatment, which has been shown to enhance immunological function, reduce depression, and improve the overall quality of life. Another beneficial technique is Benson's relaxation technique, established by Herbert Benson in 1970, providing a simple yet powerful stress-release strategy. For this study, research papers were searched using various reputable databases such as PubMed, Scopus, Web of Science, and Google Scholar websites, with data collected up to the end of 2021. The publication dates of the review articles were not restricted, allowing for a comprehensive overview. However, it is important to note that only a limited number of accessible studies have been found, underscoring the need for further research. Future investigations should focus on high-quality evidence with reliable outcome measures to draw more conclusive results about which relaxation technique offers better relief for PMS.

5.
Cureus ; 15(8): e43877, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37746372

RESUMO

Background Most women of reproductive age suffer physical discomfort or distress in the weeks before menstruation. Even though symptoms are typically not severe enough to impede daily activities seriously, they occasionally can. Physical problems like breast discomfort and bloating can also be a problem. The most irritating symptoms are those that affect mood and behaviour. Women of reproductive age experience premenstrual syndrome frequently, necessitating study into non-pharmacological methods for symptom reduction. Methodology The objective of the study was to evaluate and compare the clinical efficacy of Benson's relaxation technique to Laura Mitchell's physiological approach in patients with premenstrual syndrome. Study design was comparative parallel experimental study with patient-reported questionnaire data (online) collected before and post-intervention in tertiary hospital setting. Participants were 70 adult females aged 18 to 35 with premenstrual syndrome. Patients were administered Benson's relaxation technique once a day for a month versus Mitchell's relaxation technique once a day for a month. Both techniques were first taught for one session followed by home program to be performed by patients. The premenstrual syndrome questionnaire and a numerical pain rating scale were used to quantify premenstrual symptoms pre and post-intervention. Results The result revealed significant (p<0.01) improvement in premenstrual symptoms in both groups following the intervention. However, Bensons' relaxation technique was found to be more significant while alleviating the premenstrual symptoms. Conclusions When it comes to lowering the intensity of premenstrual syndrome in young people, Benson's relaxation method is superior to Mitchell's. Both approaches should be entrenched as a regular practice and can be employed on patients to improve their menstrual well-being.

6.
Cureus ; 15(8): e44083, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37750141

RESUMO

Childhood is critical for developing social, physical, and cognitive functioning. Burns in children are very different from burns in adults because it is difficult for them to save themselves. Their skin is more sensitive and less heat-resistant; their exposure may last longer, worsening the burn. When neglected, severe disabling and deforming contractures caused by burns in children can result in substantial impairment. Therefore, burn rehabilitation should not be carried out by one person but rather by a multidisciplinary team to ensure that all of the patients' physical, psychological, and social requirements are met while the child is in the hospital and after discharge. The treatment of young burn victims requires a multidisciplinary approach that begins the day of the accident and lasts for several years. To reduce the consequences of the patient's post-traumatic stress and increase functional independence, a thorough rehabilitation programme is needed. The burn team members' dedication, commitment to the patient's care, and encouragement of patient participation and full engagement in rehabilitation can make a difference to juvenile burn patients' long-term quality of life (QOL). We present a seven-year-old female who suffered from a superficial burn over the lateral aspect of her right thigh. Exercise prescriptions should be thoroughly customized to provide the best possible success in rehabilitation, considering the degree of burns and physical limitations. This case report is intended to serve as a practical manual for the necessary clinical knowledge and therapy intervention approaches for managing burn patients successfully.

7.
Cureus ; 15(2): e34733, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36909036

RESUMO

The maxilla is among the jaw bones with a lot of blood flow. Maxillary bone necrosis is uncommon and can be caused by infection, trauma, or unusual metabolic abnormalities. The maxilla is a vital bone that forms the roof of the mouth cavity. Mucormycosis is a prevalent fungus that infects the maxilla, particularly in diabetic and immune-compromised people and post-COVID-19 patients. Osteomyelitis is an inflammatory condition affecting the bone and marrow tissues. It is an opportunistic infection that occurs due to the host's susceptibility to illness due to the complication of other diseases. The patient, in this case, has the chief complaint of a defect in the palate. Based on a CT brain, buccal X-Ray, and HRCT scan of Thorax. The patient's condition was diagnosed as a surgical defect in a post-operated case of mucormycotic osteomyelitis of maxilla post-COVID-19 infection. The right lower lobe's posterior segment noted a tiny soft tissue density nodule. The operated case of a surgical defect of mucormycotic osteomyelitis of maxilla post-COVID-19 infection was treated with a surgical intervention that is surgical curettage and debridement of the left maxillary sinus, bilateral fibrotomy, and reconstruction with bilateral nasolabial flap under general anesthesia. However, our objective is to enhance the quality of life, increase ventilation, increase the shoulder joint's range of motion, and enhance the joint play of the temporomandibular joint so that the patient can go back to his usual activities without difficulty. A complete pulmonary rehabilitation plan was designed to meet the patient's objectives, executed, and followed for one month. It comprised myriad interventions like bedside sitting, facial expression exercises, mouth opening exercises, neck exercises, dynamic quadriceps and hamstring, active range of motion exercises for shoulder joints, thoracic expansion exercises, and breathing exercises like diaphragmatic breathing.

8.
Cureus ; 15(2): e35217, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36968877

RESUMO

Multinodular goiter is a condition in which the thyroid gland is swollen and has several distinct masses. A large multinodular goiter can lead to difficulty in swallowing and breathing. A large goiter hampers respiration and deglutition; therefore, a part of or the whole thyroid gland is removed. Total thyroidectomy is a surgical process which involves the removal of the whole thyroid gland. One of the adverse effects of a complete thyroidectomy is vocal cord paralysis. It occurs because of an injury to the recurrent laryngeal nerve. Vocal cord paralysis could be bilateral or unilateral. It is characterized by hoarseness of voice, breathing difficulties and voice pitch loss, and inability to talk loudly. This case report describes physiotherapy along with voice exercises in a 65-year-old female who suffered from unilateral vocal cord palsy following total thyroidectomy. The patient was successfully rehabilitated after four weeks, using a tailored physiotherapy program according to the difficulty faced by her. The rehabilitation exercises consisted of upper and lower limb mobility activities, breathing activities including thoracic expansion, and deep breathing exercises. Static hamstrings, static quadriceps exercise, heel slides and isometric exercise to neck muscles, and passive movements to the cervical spine were administered. Voice therapy exercises combined with breathing exercises were also administered.

9.
Cureus ; 15(1): e33212, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36733553

RESUMO

Background and objective The mother's ability to tolerate labor discomfort has an impact on how the labor progresses. Good pain management will boost mothers' ability to labor collaboratively and will shorten the time it takes for the uterus to open completely. Many women prefer not to use pharmaceutical or invasive pain relief during labor, which may have contributed to the popularity of complementary pain relief approaches. This study aimed to assess the effectiveness of the Jacobson relaxation technique and Lamaze breathing technique in the management of pain and stress during labor. Methods Thirty-six women aged between 25 and 35 years were randomly assigned to two groups for the purpose of this study. Group A received the Jacobson relaxation technique while Group B received the Lamaze breathing technique for four weeks. The patients were instructed to practice breathing techniques at the time of labor. The outcomes measure included the Numerical pain Rating Scale (NPRS) and Perceived Stress Scale (PSS), which would be measured before and after the delivery. Results The subjects showed improved labor pain and anxiety following the physiotherapy intervention. The results were found to be statistically significant (p<0.05). Conclusion Based on our findings, physiotherapy intervention plays an integral role in the multidisciplinary approach to relieving labor pain and helping patients have a normal vaginal delivery.

10.
Cureus ; 15(1): e33347, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36751171

RESUMO

Diastasis of abdominal muscles is defined as a gap of more than two finger breadths between two rectal abdominal muscle bellies, above or below the umbilicus. According to the literature, female diastasis recti is more common in women who have recently given birth although it also occurs in the male population. Lower back pain is the most prevalent reason for postpartum women to restrict their everyday activities. Women's mobility, discomfort, and typical activities are all concerns for postpartum women, all of which change a person's quality of life. During pregnancy, diastasis of the rectus abdominal muscles is very common to occur. It is linked to instability of lumbar pelvic region and pelvic floor improper function. Recently, the use of Kinesio taping is gaining popularity as a technique to reduce the separation and increase stability. The review of studies revealed that Kinesio taping is highly effective for diastasis recti and in improving the stability of lumbo-pelvic spine which was evaluated by an active straight leg raise test. There are just a few studies accessible that show the need for further research.

11.
Cureus ; 14(11): e31293, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36514584

RESUMO

Squamous cell carcinoma (SCC) is the most common malignant tumor of the oral cavity. Since it spreads and metastasizes more quickly than any other form of glabrous skin carcinoma, SCC of the lips seems to be more harmful. This report highlights the case of a 67-year-old man who underwent a mandibulectomy for lip SCC, subsequently having complaints of severe trismus and jaw pain, dysarthria, and difficulty drinking water. The patient's symptoms and trismus improved significantly via a course of physiotherapy. Six weeks of physiotherapy with various interventions such as mouth opening and closing exercises along with tongue protrusion, lower limb and upper limb passive movements, breathing exercises, lower limb mobility exercises, speech therapy, static shoulder exercises, static gluteus exercises, static hamstring exercise, and static quadriceps exercises, shoulder shrugs, neck isometrics, and shoulder-scapular sets, including goldfish exercises and Rocabado exercises may be helpful for managing symptoms such as trismus and other associative problems such as maintaining circulation and avoiding compensatory posture, pulmonary complications, and secondary complications, which may be helpful for managing the patient after mandibulectomy.

12.
Cureus ; 14(10): e30711, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36457634

RESUMO

A diaphysis fracture that occurs between 5 cm distal to the lesser trochanter and 5 cm proximal to the adductor tubercle is recognized as a femoral shaft fracture and is prevalent in runners and military personnel. A patient's ability to carry out activities of daily living effectively and efficiently post-surgery is hampered by a variety of obstacles. We present a case of a 21-year-old male who came to the hospital with a complaint of pain and swelling in his right leg. The patient was diagnosed with a proximal femur fracture. Physiotherapy procedures commenced with the purpose of alleviating pain and establishing a normal range of motion. As a result of the physiotherapy regimens, the patient was aided in his recovery.

13.
Cureus ; 14(11): e31180, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36505157

RESUMO

Fractures of the parasymphysis occur in 15% of all cases of mandibular fracture. The mandible occupies the lowest portion of the face. The prominent bone of the face is severely injured when the lower face is hit by high impacts with upward or obliquely directed force. In this case study, we discussed the alleged trauma case of a 20-year-old man who fell from a height on August 27, 2022, at about 9:00 p.m. near Wardha. His family took him to the hospital in Wardha due to pain that was aggravated during chewing and swelling in his jaw. On investigation, an X-ray was done, and a left parasymphysis and right-side body fracture were noticed. Later, the patient underwent surgery, where open reduction and internal fixation of the left parasymphysis and the right-side body fracture with plating and intermaxillary fixation (IMF) were done. Then he was referred to the physiotherapy department for therapeutic intervention. Rehabilitation was given to reduce pain and swelling, regain full range of motion, gradually increase mobility, and keep associated muscles strong. A six-week protocol was administered to the patient. It was found that the therapeutic approach was quite effective for the patient.

14.
Cureus ; 14(11): e31700, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36561577

RESUMO

Chronic marijuana and alcohol consumption leads to many forms of physical and physiological deterioration in the human body, mainly affecting the neurological system. A ​​​​65-year-old male patient suffered from stroke with the involvement of middle cerebral artery of the left side. Nine years later, patient presented with gangrene due to a traumatic unhealed wound on his left leg. The patient was under the influence of alcohol when he was injured. The infection spread, causing peripheral arterial disease, which eventually led to the development of gangrene till mid-calf of the left leg, for which he was amputated. Above-knee amputation with a fish-mouth incision was performed. Physiotherapy management focused on prehension and grip exercises for right upper limb, strengthening of all the limb musculature, stump management, transfer training, gait training with walker/crutches and prosthesis, and home exercise program, retraining activities of daily living. This case study embodies a rehabilitation program for this patient who suffered from stroke followed by amputation of the left leg. It focuses on bringing the patient back to his near-normal life. Regular physiotherapy helped the patient build up confidence, helped in resolving his addictions, and provided individual structure management. We present a rare case of above-knee amputation secondary to complications of alcohol abuse where an extensive post-op care and elaborate physiotherapy program resulted in a successful recovery.

15.
Cureus ; 14(9): e29668, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36321036

RESUMO

We report a rare case of a 32-year-old male diagnosed with a mass of intussusception in the right lumbar region. Adult intussusception has a prevalence of less than 5%. Among all cases of intestinal obstructions, adult intussusception is found to be only 1-3%. Adult intussusception of the bowel is uncommon. In contrast to intussusception in children, the traditional trio of palpable sausage, jelly stools, and discomfort is rarely seen. Adults usually present with nonspecific findings that last for a long time. We share the case of a patient who presented with complaints of pain in the abdomen and loss of appetite for six months. In addition, the patient also complained of constipation. The patient had a history of easy fatigue on moderate-intensity activity. Ultrasonography of the abdomen was suggested which revealed bowel wall thickening in the subhepatic region, with likely intussusception and formation of a lump with few enlarged lymph nodes adjacent to it. A confirmatory diagnosis was made after a computed tomography scan. In all cases, surgical intervention is required, and an organic lesion inside the invaginated section of the colon is discovered to be the lead point in up to 90% of cases. The laparoscopic procedure can be used for both diagnostic and therapeutic purposes. A right hemicolectomy was performed through a vertical midline incision. The patient was referred to the physiotherapy department for further management.

16.
Cureus ; 14(9): e29732, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36340547

RESUMO

Le Fort fractures are a specific kind of facial bone fracture that develops after a blow to the face. Most of the fractures of the spine occur in the thoracolumbar region. The benefits of physiotherapy, which includes manual therapies and exercise regimens, for patients are becoming more and more clear. We are going to report the case of a 25-year-old male adult with a thoracolumbar fracture and a Le Fort fracture. We made an effort to develop a post-surgical physical therapy rehabilitation program. The patient's condition and general quality of life were successfully improved. We focused on the patient's primary symptoms, which were thoracolumbar discomfort, lower limb weakness, edema and pain on the left side of the face, trismus, and restricted mouth opening. We worked on the complaints mentioned by the patient and were successful in resolving them.

17.
Cureus ; 14(10): e30680, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36439598

RESUMO

Although oral cancer is well-known, the occurrence rate of the disease varies greatly globally. Squamous cell carcinoma of the tongue, which frequently starts in the lateral tongue, is the most common kind of oral cancer. In this instance, a male patient was found to have squamous cell carcinoma of the tongue and had undergone surgery. Following any surgical treatment of the tongue, discomfort, septicemia, difficulty eating, and speech issues are the most common oral consequences. His chief complaints were pain and difficulty in mouth opening. He also had the inability to move his tongue, which made talking and swallowing difficult. He had a history of chewing tobacco and smoking cigarettes for the past 15 years. A physiotherapy program was advised to the patient to reduce his symptoms, which included mouth-opening exercises, swallowing exercises, etc. The case's findings indicate that, when compared to the outcome measures, all objectives were met, and the patient improved in his activities of daily living.

18.
J Educ Health Promot ; 11: 241, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36177431

RESUMO

BACKGROUND: Pregnant women experience falls, particularly in the third trimester. In this population, physiological changes, as well as ligament laxity, might influence joint proprioception and do not return to normal during the postpartum period. The prevalence of falls during pregnancy and postpartum periods imposes a need to study proprioception in pregnant women and the postpartum period. MATERIALS AND METHOD: An observational longitudinal study was conducted in June 2018 in outpatient clinic Chinchwad Pune. A total of 36 primiparous women were included in the study by using purposive sampling. The mean and standard deviation of the age was 25.92 (2.59). Proprioception was assessed for the knee joint and the ankle joint during the third trimester of pregnancy and 6th and 12th week postpartum. Outcomes included were the Joint Reposition Test for both knee and ankle joints using UTHSCSA Image Tool Software 3.0. Repeated-measure ANOVA was performed for the normally distributed data, and nonparametric test Friedman's test was performed for data that were not distributed normally. The data was statistically analyzed using the SPSS software version 26. The level of significance was set at 0.05, confidence intervals of 95% were used. RESULT: The result revealed significant (P < 0.05) improvement in both knee and ankle proprioception during the third trimester of pregnancy and postpartum period 6th and 12th week. CONCLUSION: Knee proprioception and ankle proprioception were found to improve significantly during the postpartum period 6th and 12th weeks compared to the third trimester of pregnancy but do not return to the prepregnancy state.

19.
Cureus ; 14(8): e27673, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36072191

RESUMO

A common secondary complication of oral malignant carcinoma is metastatic cervical lymphadenopathy. The condition is typically treated surgically, with the affected cervical lymph nodes excised, followed by pharmacological treatment. However, additional complications such as asymmetry of facial features, reduced mouth opening, adhesions in sutured tissues, and so on accompany surgical management. This case report describes a case of an adult male who underwent surgery for metastatic cervical lymphadenopathy caused by previous squamous cell carcinoma of buccal mucosa. To address the surgical outcomes that were affecting the patient's quality of life, an integrated physiotherapy management protocol was developed and efficiently followed for three weeks. Improvements in mouth opening, tongue movement, cervical joint movement, chest movement, and the Oral Health Impact Profile quality of life questionnaire were observed at the three-week evaluation, indicating that the intended therapy was effective.

20.
Biochem J ; 478(6): 1241-1259, 2021 03 26.
Artigo em Inglês | MEDLINE | ID: mdl-33650635

RESUMO

HtrA2 (high-temperature requirement A2) and GRIM-19 (gene associated with retinoic and interferon-induced mortality 19 protein) are involved in various biological functions with their deregulation leading to multiple diseases. Although it is known that the interaction between GRIM-19 with HtrA2 promotes the pro-apoptotic activity of the latter, the mechanistic details remained elusive till date. Moreover, designing allosteric modulators of HtrA2 remains obscure due to lack of adequate information on the mode of interaction with its natural substrates cum binding partners. Therefore, in this study, we have unfolded the interaction between HtrA2 and GRIM-19 so as to understand its subsequent functional repercussions. Using in silico analyses and biochemical assays, we identified the region in GRIM-19 that is involved in protein-protein interaction with HtrA2. Furthermore, we have presented a comprehensive illustration of HtrA2's cleavage site specificity. Quantitative analysis using enzyme kinetics underscored the role of GRIM-19 in significant allosteric activation of HtrA2. Overall, this is an extensive study that not only defines HtrA2-GRIM-19 interaction, but also creates a framework for developing strategies toward allosteric regulation of HtrA2 for future therapeutic interventions.


Assuntos
Proteínas Reguladoras de Apoptose/química , Proteínas Reguladoras de Apoptose/metabolismo , Apoptose , Serina Peptidase 2 de Requerimento de Alta Temperatura A/química , Serina Peptidase 2 de Requerimento de Alta Temperatura A/metabolismo , NADH NADPH Oxirredutases/química , NADH NADPH Oxirredutases/metabolismo , Domínios PDZ , Regulação Alostérica , Sítios de Ligação , Humanos , Modelos Moleculares , Conformação Proteica , Especificidade por Substrato
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