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Chinese Weevils (Ulomoides dermestoides)

An unapproved folk cancer practice, also called coleotherapy or gorgojo chino therapy, in which live Ulomoides dermestoides darkling beetles are swallowed in escalating numbers. Claims focus on immune stimulation, inflammation control, and beetle defensive quinones; evidence is limited to laboratory, animal, chemical, and anecdotal sources, with published safety concerns.

Articles

Volatilome and Essential Oil of Ulomoides dermestoides: A Broad-Spectrum Medical Insect

Paulina J. Cazares-Samaniego; Claudia G. Castillo; Miguel A. Ramos-Lopez; Marco M. Gonzalez-Chavez | Molecules | Both

Ulomoides dermestoides, volatilome, essential oil, metabolites, medicinal insect

Chemical/metabolomic study identifying numerous volatile and essential-oil metabolites in Ulomoides dermestoides and discussing traditional use for many conditions, including different types of cancer.

Novel Extract from Beetle Ulomoides dermestoides: A Study of Composition and Antioxidant Activity

Nina A. Ushakova; Efim S. Brodsky; Olga V. Tikhonova; Alexander E. Dontsov; Maria V. Marsova; Andrey A. Shelepchikov; Alexander I. Bastrakov | Antioxidants | Both

Ulomoides dermestoides extract, antioxidant activity, composition

Study of a beetle extract obtained by electro-pulse plasma dynamic extraction, with composition and antioxidant activity analysis. It notes traditional use for inflammatory diseases and cancer.

Cytotoxic and genotoxic activity of phenolic fractions from Ulomoides dermestoides in HaCat cells

D. L. Mendoza-Meza; P. Espana-Puccini | TIP Revista Especializada en Ciencias Quimico-Biologicas | Both

Ulomoides dermestoides, phenolic fractions, cytotoxicity, genotoxicity, HaCat cells

Study evaluating cytotoxic and genotoxic effects of phenolic fractions from Ulomoides dermestoides in immortalized human keratinocyte cells. Relevant to toxicity/biological activity, but not cancer treatment outcomes.

Substances produced by the beetle Ulomoides dermestoides: inflammatory and cytotoxic effect

Grecia Gabriela Deloya-Brito; Cuauhtemoc Deloya | Acta Zoologica Mexicana | Both

Ulomoides dermestoides, benzoquinones, cytotoxicity, immunotoxicology, carcinogenesis

Spanish-language review/essay noting traditional use of Chinese beetles for systemic diseases including cancer, while emphasizing benzoquinone-related cytotoxicology, immunotoxicology, and carcinogenesis concerns.

Cytotoxic and genotoxic effects of defence secretion of Ulomoides dermestoides on A549 cells

Rosana Crespo; M. Luciana Villaverde; Juan R. Girotti; Alba Guerci; M. Patricia Juarez; Margarita G. de Bravo | Journal of Ethnopharmacology | Both

Ulomoides dermestoides, A549 lung carcinoma cells, cytotoxicity, genotoxicity

In vitro study reporting that defensive compounds from Ulomoides dermestoides reduced A549 lung carcinoma cell viability and induced DNA damage. The same work also reported effects on normal mononuclear cells, so it is a toxicity/mechanism signal rather than clinical proof of cancer benefit.

Anti-inflammatory and immunomodulatory effects of Ulomoides dermestoides on induced pleurisy in rats and lymphoproliferation in vitro

R. C. V. Santos; A. Lunardelli; E. Caberlon; C. M. Bastos; F. B. Nunes; M. G. Pires; V. Biolchi; E. L. Paul; F. B. Vieira; A. Resende do Carmo Aquino; E. Corseuil; J. Rodrigues de Oliveira | Inflammation | Both

Ulomoides dermestoides, inflammation, immune modulation, animal study

Animal and in vitro study often cited for anti-inflammatory and immunomodulatory effects of Ulomoides dermestoides extracts. Relevant to claimed mechanisms, but not a cancer outcome study.

Volatile secretions and epicuticular hydrocarbons of the beetle Ulomoides dermestoides

M. Luciana Villaverde; Juan R. Girotti; Sergio J. Mijailovsky; Nicolas Pedrini; M. Patricia Juarez | Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology | Both

Ulomoides dermestoides, defensive secretion, benzoquinones, volatile organic compounds

Chemical characterization paper identifying methyl-1,4-benzoquinone, ethyl-1,4-benzoquinone, 1-tridecene, and 1-pentadecene as more than 90% of the volatile blend from Ulomoides dermestoides.
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