2.Inflammatory and Immunomodulatory Effects of Tripterygium wilfordii Multiglycoside in Mouse Models of Psoriasis Keratinocytes.
Shuo ZHANG ; Hong-Jin LI ; Chun-Mei YANG ; Liu LIU ; Xiao-Ying SUN ; Jiao WANG ; Si-Ting CHEN ; Yi LU ; Man-Qi HU ; Ge YAN ; Ya-Qiong ZHOU ; Xiao MIAO ; Xin LI ; Bin LI
Chinese journal of integrative medicine 2024;30(3):222-229
OBJECTIVE:
To determine the role of Tripterygium wilfordii multiglycoside (TGW) in the treatment of psoriatic dermatitis from a cellular immunological perspective.
METHODS:
Mouse models of psoriatic dermatitis were established by imiquimod (IMQ). Twelve male BALB/c mice were assigned to IMQ or IMQ+TGW groups according to a random number table. Histopathological changes in vivo were assessed by hematoxylin and eosin staining. Ratios of immune cells and cytokines in mice, as well as PAM212 cell proliferation in vitro were assessed by flow cytometry. Pro-inflammatory cytokine expression was determined using reverse transcription quantitative polymerase chain reaction.
RESULTS:
TGW significantly ameliorated the severity of IMQ-induced psoriasis-like mouse skin lesions and restrained the activation of CD45+ cells, neutrophils and T lymphocytes (all P<0.01). Moreover, TGW significantly attenuated keratinocytes (KCs) proliferation and downregulated the mRNA levels of inflammatory cytokines including interleukin (IL)-17A, IL-23, tumor necrosis factor α, and chemokine (C-X-C motif) ligand 1 (P<0.01 or P<0.05). Furthermore, it reduced the number of γ δ T17 cells in skin lesion of mice and draining lymph nodes (P<0.01).
CONCLUSIONS
TGW improved psoriasis-like inflammation by inhibiting KCs proliferation, as well as the associated immune cells and cytokine expression. It inhibited IL-17 secretion from γ δ T cells, which improved the immune-inflammatory microenvironment of psoriasis.
Male
;
Animals
;
Mice
;
Tripterygium
;
Psoriasis/drug therapy*
;
Keratinocytes
;
Skin Diseases/metabolism*
;
Cytokines/metabolism*
;
Imiquimod/metabolism*
;
Dermatitis/pathology*
;
Disease Models, Animal
;
Mice, Inbred BALB C
;
Skin/metabolism*
3.Relationship between skin diseases and mental disorders among outpatients at a tertiary government hospital in the Philippines
Arielle Marie Therese V. Castañ ; eda ; Jennifer Aileen Ang-Tangtatco
Journal of the Philippine Dermatological Society 2024;33(Suppl 1):39-39
BACKGROUND
Skin diseases and mental disorders are often correlated. However, the prevalence of this association among outpatients is not well-documented, especially in the Philippines. This study investigated the complex relationship between skin conditions and potential mental disorders, aiming to enhance patient care through a more comprehensive, integrated treatment approach.
OBJECTIVESTo determine the relationship between skin diseases and probable mental disorders among outpatients seen at the dermatology department of a tertiary government hospital in the Philippines.
METHODSThis descriptive, cross-sectional study included 298 participants. Socio-demographic and clinical profiles were gathered, and a validated screening tool was used to identify probable mental disorders. Analytical statistics were employed to assess the relationship between socio-demographic and clinical profiles, skin diseases, and symptoms suggestive of a mental disorder.
RESULTSThe study results revealed no significant association between specific skin diseases and mental disorders. However, significant correlations were noted between certain sociodemographic and clinical factors—such as employment status, residence, educational attainment, birth order, disease severity, and disease duration—and the presence of probable mental disorders.
CONCLUSIONThe results emphasized the critical role of clinical and sociodemographic factors in determining mental health outcomes in dermatology settings. Incorporating mental health screenings into standard dermatological care enables healthcare providers to greatly improve patient outcomes, providing a more comprehensive and holistic treatment approach.
Skin Diseases ; Mental Disorders ; Outpatients
4.Advances in the Role of Low-Dose Interleukin-2 in Immune-Mediated Dermatosis.
Acta Academiae Medicinae Sinicae 2023;45(4):683-688
Immune-mediated dermatoses are the skin diseases caused by the breakdown of immune tolerance,including lupus erythematosus and dermatomyositis.The imbalance between regulatory T cells (Tregs) and effector T cells (Teffs) plays a key role in the pathogenesis of these diseases.Low-dose interleukin-2 can preferentially activate Tregs and reverse the imbalance between Tregs and Teffs to recover the immune tolerance,which has attracted attention in the treatment of immune-mediated dermatoses.This review summarizes the research progress in the immunomodulatory mechanism and clinical application of low-dose interleukin-2 in immune-mediated dermatoses,providing a new idea for the clinical treatment of these diseases.
Humans
;
Interleukin-2
;
Lupus Erythematosus, Systemic
;
T-Lymphocytes, Regulatory
;
Skin Diseases/drug therapy*
5.Research progress in gut-skin axis and its association with traditional Chinese medicine theory.
Yong-Mei GUAN ; Shi-Chun ZHAO ; Qiong LI ; Li-Hua CHEN ; Fei WANG ; Huan-Huan DONG ; Fang WANG ; Xiao-Fan CHEN ; Hua ZHANG ; Wei-Feng ZHU
China Journal of Chinese Materia Medica 2023;48(18):4908-4918
Currently, the gut-organ axis has become a hot research topic. As increasing attention has been paid to the role of gut microbiota in the health of organs, the complex and integrated dialogue mechanism between the gastrointestinal tract and the associated microbiota has been demonstrated in more and more studies. Skin as the largest organ in the human body serves as the primary barrier protecting the human body from damage. The proposal of the gut-skin axis has established a bidirectional link between the gut and the skin. The disturbance of gut microbiota can lead to the occurrence of skin diseases, the mechanism of which is complex and may involve multiple pathways in immunity, metabolism, and internal secretion. According to the theory of traditional Chinese medicine(TCM), the connection between the intestine and the skin can be established through the lung, and the interior disorders will definitely cause symptoms on the exterior. This paper reviews the research progress in the gut-skin axis and its correlation with TCM theory and provides ideas and a basis for cli-nical treatment and drug development of skin and intestinal diseases.
Humans
;
Medicine, Chinese Traditional
;
Gastrointestinal Tract
;
Skin Diseases/drug therapy*
;
Gastrointestinal Microbiome
6.Subcorneal pustular dermatosis type of IgA Pemphigus in a 35-year-old female: A case report
Elaine R. Tabayoyong ; Cindy J. Tan ; Katrina C. Estrella ; Ruth B. Medel ; Camille B. Angeles
Journal of the Philippine Medical Association 2023;102(1):82-89
Introduction:
IgA pemphigus is a rare, distinct variant of Pemphigus characterized by vesiculopustular eruptions mediated by IgA autoantibodies targeting keratinocyte cell surface antigens, desmocollins 1-3 and sometimes desmogleins 1 and 3. Its classical features have been described in literature but atypical cases have also been documented. This report presents such case posing a diagnostic dilemma.
Case Report:
A 35-year-old female presented with a 16-year history of intermittent eruptions of multiple hyperpigmented, annular and circinate, desquamating plaques and coalescing flaccid pustules on erythematous bases on the scalp, neck, trunk, and extremities. Histopathologic examination revealed subcorneal pustular dermatitis, and direct immunofluorescence was positive for granular intercellular IgG and IgA deposits in the epidermis. Antinuclear antibody test was negative and C3 level was normal. Antibody tests against desmogleins 1 and 3 were both negative. Topical potent corticosteroid therapy resulted in complete resolution of all lesions in three weeks.
Conclusion
Diagnostic dilemmas arise when laboratory results do not correlate with clinical findings. Findings of IgA autoantibodies in patients with pemphigus-like skin eruptions led to the diagnosis of subcorneal pustular dermatosis type of IgA pemphigus. Dapsone is the treatment of choice although topical potent corticosteroid alone may provide complete remission in some cases, avoiding the potential adverse effects of systemic therapy
Skin Diseases, Vesiculobullous
10.Advances in Diagnostic Criteria and Severity Assessment of Atopic Dermatitis.
Acta Academiae Medicinae Sinicae 2023;45(3):493-499
Atopic dermatitis(AD),a chronic and relapsing skin disease,is characterized by dry skin and pruritus,severely affecting the quality of patients' life.Accurately grasping the diagnostic criteria and severity assessment is essential and helps to avoid misdiagnosis and missed diagnosis.Moreover,it facilities the development and adjustment of the therapeutic schedule according to the therapeutic reaction and disease control conditions.This article reviews the research advances in the diagnostic criteria and severity assessment of AD.
Humans
;
Dermatitis, Atopic/drug therapy*
;
Pruritus
;
Skin Diseases
;
Severity of Illness Index


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